Improvement in middlings-separators



Patented Feb. 11,1879.

B. WIRT 8L H. G. CLOUSBR Middlngs-Separator. No. 212,2. l

N.PETERS, FHOTO-UTNDGRAPHER, WASHINGTON. D. U.

. NITED STATES PATENT OFFICE?,

BEN WIRT ANDv HENRY G. OLOUSER, OF MILLERSBURG, PENNSYLVANIA.

IMPROVEMENT IN MlDDLINGS-SEPARATORS.

Specication forming part of Letters PatentvNo. 212,292, dated February l1, 1879; application iiled December 18, 1878.

To all whom it may concern:

Be it known th at we, BEN 'Win'r and HENRY G. OLOUSER, of Millersbnrg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Middlings-Separators5 and we do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

In the accompanying drawings, Figure I is a vertical central section of a middlings-separating machine constructed in accordance with our invention. Fig. 2 represents a vertical section, taken through line .fr x, of passage It, Fig. 1, the sides being removed from passage which leads from the fan-blast box, and also from blast-box and discharge-spouts, in order that the internal construction thereof may be more clearly illustrated.

Referring to the accompanying drawings, which illustrate our improvements in middlingsiseparators, the frame-work of the machine is indicated by letter A. B represents the feed-spout, leading to the double-reel bolt. This double-reel bolt is composed of theA rods or arms c, radiating from the axis d, and a series of strips, e, secured upon the ends of said rods, the frame thus formed being covered with bolting-cloth and constituting the inner bolt. Strips f, similar to the above-mentioned strips e, are secured in like manner around the exterior of this bolt, and these are in turn surrounded by boltin g-clcth, whereby a double bolting-reel is obtained, substantially as herein shown.

Owing to the degree of neness of the bolting-cloth from the spoutB to the center ofthe bolt, the superflue flour only will be separated from the middlings, Ste.; and owin g to the texture of the cloth from the center to the tail end of the bolt, the middlings will be rendered still purer by the removal of the coarsest stuff.

- The spiral conveyer` G, provided with the usual driving-pulleys, conveys the superflue flour which sifts down through the bolt between its center and spout A to a spout, h,

below the tail of the double reel, we form a spout, k', which carries oit1 the red ship-stuft' from the reel, which is left therein after the middlings have been sifted through. The pas sage k extends upward to the drum l, wherein are mounted the fans m, for creating the requisite blast. The suction-passage 7c is pro` vided with slides Z l', whereby the opening in the drum may be enlarged or diminished, and the suction which draws the lighter middlings and blast-stuft' into the drum thereby regu lated. The middlings and blast-stuff, being driven by the rotating fans, pass over the regulating-slide m', the middlings falling on the fall-board n, thence passing down through the spout o into the suction-spout lo thoroughly purified, and thence passing from the spoilt k at its bottom. The blast-stuff is driven by the blast from the fan, and carried from the maa chine through the medium of the blastbox p, which, as shown, is covered with bolting-cloth, and is provided with a downward passage, q.

R represents a pivoted valve, which is adapt` ed to regulate the blast so as not to permit the fme middlings to be carried oft' into the blast; box, by reason of its being adjusted at such angle as will admit of the middlings striking against its under side. S is a sliding fallboard, operated by a handle, t, or in any suitable way, and constitutes an auxiliary to the valve in retaining the iine middlings in the machine.

In connection with the suction-pipe la, we employ a valve, V, which regulates the suction and blast in case of any irregular speed of the mill, which in practice frequently occurs, especially in country or custom mills.

1. The combination of the reel-bolt, blastpassage k, valve V, slides t i, and drum with rotating fans, all constructed and arranged as herein shown and described.

2. In combination with the suction-spout and blast-fans, the blast-box p, passage q, fallboard fn, spout o7 and valve R, substantially as shown and described.

3. In combination with the blast drum, valve R, fall-board n, downward spout for middlings, and blast-box p, the sliding fall-board S, substantially as shown and described.

4. In a blast-passage leading from the blastdrum to the blast-box, and to a downward passage for the middlings, the regulating-slide m and valve R, located Within the passage Which leads from the blast-drurn7 containing the rotary upper blast and suction fan, the said valve R being arranged just above the fall-board,

and adapted to regulate the blast so as not to permit the line middlin gs to be carried into the blast-box7 but to cause the same to strike against it and thereby fall into the spout o, all substantially as shown and described.

In testimony that We claim the foregoing as our own We affix our signatures in presence of two Witnesses.

BEN WIRT. HENRY G. CLOUSER.

Witnesses:

J. L. BOMGARDNER, J oHN S. MUssER. 

